In all seriousness, according to Cavallari, she has embarked on a 10-day detox plan that consists of ingesting only variety of vegetables, protein shakes, fish, chicken and brown rice, all of which are delivered to her home daily.

"Such a beautiful morning. Started a 10-day detox today...protein shake for breakfast and it wasn't bad!" the 23-year-old reality star Tweeted last week.

Kristin Cavallari looks good to us. Hope she's not going to get too thin on us ... that's just no good. Celebs need to set the example that you can eat AND be hot.

But shortly into the detox (which began with three days of consuming just protein shakes), Cavallari admitted the cleanse wasn't as easy as expected.

"So its day 5 of my cleanse and its been pretty easy until today," she Tweeted longingly this past Sunday. "I can't stop thinking of all the food I want!"

Still, The Hills' resident bad girl insists that she isn't doing the cleanse solely to drop a few extra pounds. Because no one diets for that reason ... ever.

"Just wanna make 1 thing clear-the cleanse is not for weight loss. Its for health... and I feel great!" she Tweeted earlier this week. We're glad to hear it.

NOTE: Follow THG on Twitter! We promise no updates on our interns' current "cleanse" of Chipotle, Taco Bell and Wendy's. Hey, it's all they can afford.